First of all, ignore all the information on the internet. Why? All of the dudes are on steroids, human growth hormones, testosterone injections or other strange supplements.
Second, lift very very heavy things, as often as you can. a very pragmatic suggestion I have is lower the range of motion, increase the weight. For example, instead of doing deadlifts, better to do rack pulls instead. Also with squat, you don’t need to go that low. Just do a micro squat.
Third, no carbs, alcohol or sugar. No marijuana. Only lots of black coffee, green tea, and eat a shit load of meat. Also intermittent fasting— no breakfast or lunch or “pre-workout” stuff. No protein powder. Only beef ribs, beef liver, heart, brisket.